EP 1070558 A3 20030604 - Method of manufacturing titanium fiber or titanium alloy fiber
Title (en)
Method of manufacturing titanium fiber or titanium alloy fiber
Title (de)
Verfahren zur Herstellung von Fasern aus Titan oder Titanlegierung
Title (fr)
Procédé de fabrication de fibres en titane ou en alliages de titane
Publication
Application
Priority
JP 19959699 A 19990713
Abstract (en)
[origin: EP1070558A2] A method of manufacturing an ultrafine titanium fiber or titanium alloy fiber comprises the steps of: forming a composite strand (6) by binding a multitude of covered wires (4), in which a covering layer (2) is formed around the periphery of a metal wire (1), and covering the wires with an exterior material (5); forming a composite wire (7) by repetitively conducting cold wire-drawing processing and annealing heat treatment to said composite strand (6); and conducting a wire-separating process to form a metal fiber bundle (8) by removing a portion corresponding to the covering layer (2) and the exterior material (5) in said composite wire (7). The method is characterized in that (A) the metal wire (1) is a titanium wire material or a titanium-alloy wire material; (B) the covering layer (2) and the exterior material (5) are mild steel containing 0.25 wt% or less or carbon; and (C) the maximum temperature the composite strand reaches during the annealing heat treatment conducted for the composite strand (6) is between 700 DEG C and 800 DEG C. <IMAGE>
IPC 1-7
IPC 8 full level
B21C 1/00 (2006.01); B21C 9/00 (2006.01); B21C 37/04 (2006.01); B32B 15/01 (2006.01); C21D 1/26 (2006.01); C22C 1/00 (2006.01); C22C 14/00 (2006.01); C22F 1/00 (2006.01); C22F 1/18 (2006.01)
CPC (source: EP)
B21C 1/003 (2013.01); B21C 37/047 (2013.01); B32B 15/013 (2013.01); C22C 1/00 (2013.01); C22C 14/00 (2013.01); C22F 1/183 (2013.01)
Citation (search report)
- [DX] EP 0899365 A2 19990303 - BRIDGESTONE METALPHA CORP [JP]
- [A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 464 (M - 1033) 9 October 1990 (1990-10-09)
- [A] PATENT ABSTRACTS OF JAPAN vol. 017, no. 592 (M - 1502) 28 October 1993 (1993-10-28)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1070558 A2 20010124; EP 1070558 A3 20030604; JP 2001025813 A 20010130
DOCDB simple family (application)
EP 00305890 A 20000712; JP 19959699 A 19990713